Hard Failures

If any warning lights and/or messages were displayed when the fault occurred, refer to RETRIEVING DIAGNOSTIC TROUBLE CODES  for retrieving DTC information. Some warnings will appear to clear when the ignition is cycled. This is often because the warning has flagged as a result of one of the vehicle's drive cycles having run to detect the fault. If the same drive cycle has not run when the ignition was switched on, the warning will not reflag until the drive cycle does run. See DRIVE CYCLES .